Zip Area Code

Union County, Iowa

Union County, Iowa, has 7 towns and 6 ZIP codes, in area code 641.

Towns in Union County, A to Z

TownZIP codesArea codes
Afton50830641
Arispe50831641
Creston50801641
Cromwell50842641
Shannonnearest50831, 50861641
Shannon City50861641
Thayer50254641

ZIP codes in Union County

Area code in Union County

  • Area code 641

    In service since July 9, 2000. Local calls are dialed with seven digits.

Local numbers in area code 641

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